Improved steam-pump



T. & G. '1. SNOWDBNI s 1. 11.111111.

STEAM PUMP.

Paented Jan. 11, 1870.

tntrd mes aten- @biblio-2.

I THOMAS SNOWDON, GEORGE T. SNOWDEN, AND ISAAC V. LYNN, 0F PITTS- BU RG., PENNSYLV ANIA.

Letters .Patent No. 98,810, dated January 11, 1870.

IMPROVED `SllEAlllI-PUIVIP.

To all whom 'it may concern:

Be it known that we, THoMAs SNoWnoN, GEORGE T. SNOWDEN, and ISAAC V. LYNN, all of the city of Pittsburg, in the county of Allegheny, and State of Pennsylvania, have invented a new and useful Improvement in Steam-Pumps; and we do hereby declare that the following is a full,j clear, and exact description thereof', refe-rence being had to the accompanying drawings, and to the letters and figures of reference marked thereon.

' The nature of our invention 'consists in theconstruction of a steam-pump with chambers, arranged and operating with relation to each other,'in the manner 'hereinafter described.

' To enable others skilled in the art tomake and use ourinvention, we will proceed to describe its construction and operation.

In the accompanying drawings, which form part of' our specification- Figlu'e I is alougitudinal section of our improvement in steam-pumps, wheu'cut through at lines 1 and 3 of figs. 2 and 3.

Figure 2 is a transvcrse'section 'of the same, when cut through at line y of iig. I.

Figure 3 -is a longitudinal section of the same, when Vcut through at line 2 oifig. 2.

The chambers A' and C are provided with screwthreads, as indicated at c, f, and g, for the purpose of attaching pipes to them.

To the case or body A, at c, -is attached the suction or watersupply pipe at g' is attached the exit-pipe, and at f is attached the steam-pipe.

As the construction of our pump will be readily understood from the foregoing description, and by reference to the accompanying drawings, we will proceed to describe its operation.

Steam being admitted into chamber C, it will cause the water to flow through the supply-pipe into chamber A', and a portion ofthe water will pass into the chamber B, through the opening z, and fiow from chambers A and I3 out through the exit-pipe att-ached at g. p

By contracting or enlarging the extreme end x' of chamber C, we have found that the power of the pump is increased. 'We have also found that chambers coustructed, arranged, and combined as herein described, form a very powerful and eiicient pump.. But the rationalcof operation ol' chambers thus combined, we cannot give, the1efore,'we leave this to those who are versed in the sciences of pucumatics and hydrostatics.

Having thus described the nature, construction, and operation of our improvement,

What we claim as of our invention, is

The combination of the chambers A', B, and O, constructed, arranged, and operating, substantially as herein described.

THOMAS SNOWDON. GEORGE T. SNOWDEN.l ISAAC V.4 LYNN.. Witnesses:

Guo. H. THOMAS, JAMES J. JOHNSTON. 

